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Problem with new SWM install?

We recently moved to a new house. At the new house, the installer put in a SWM dish feeding our HR20-700. At the old house we had a Slimline5 feeding that DVR plus our old HR10-250.

Ever since, we've been having trouble with partial recordings and empty recordings. Sometimes there's a 771 error on screen saying tuner 1 is not working. Since either a system test or reboot always seemed to fix the issue, I've assumed it was a firmware problem.

Double check to make sure that the coax is feeding the SWM input of your HR20.

Double check that your setup is correct in your receiver settings.

If both are correct, unplug your HR20 (if I followed you, this is the only receiver you're running) , unplug your SWM PI,wait a bit, plug PI back in, give it a bit to boot your lnb and then plug your HR20 back in.

Ii have seen these receivers do this before. It is a failure of the machine either software or hardware in dealing with its new swim interface it cannot keep contact with the swim channels. Almost always the receiver is swapped out. certainly try the other suggestions, however dont wait to long to get it replaced if you need to.

Is all of the cabling on your new installation new? If so, there aren't likely to be any in-line components causing issues. Otherwise, that might be a place to look.
Another possibility is that since you previously didn't use the SWiM capability in your HR20, you might not have known that it was actually defective the whole time
There's a possibility that it's the SWiMLNB, that's certainly not out of the question.

I recommend calling in asap to get a no-charge rollback. The tech should be able to tell pretty quickly where the issue is coming from with the correct tools.

"He that is good for making excuses is seldom good for anything else."

Yep. Everything is brand new except the HR20. Correct that it's never been connected to a SWiM before and I already thought about the "always been defective" possibility. The installer was very good and even participates here at DBSTalk.

I will double-check the sat setup, but I'm quite sure it's right. I'm happy to do a full system re-boot as suggested. I'll re-check the signal strengths after all that. If there are still anomalies I'll call D* immediately.

Thanks for the help. I posted here in case the symptoms were completely familiar to someone who could say, "Bad power inserter" or something like that.

I hate, hate, hate that we can't transfer recordings to a new box, even on eSATA. I do hope we don't need a new receiver. But if we do, I'm shooting for an HR34. We retired our other two tuners along with the HR10-250 for the new SWiM setup.

Oh, and the tech called our setup an "HD DVR museum". He's kind of right. At the moment we have an HR10-250 (first HD DVR), HR20-700 (first D*-designed HD DVR), and an HR34-700 (latest and greatest) all hooked up to our TV right now. Pretty soon it will just be the HR34, though. That's definitely all we need.